Water circulator for boilers



Feb. 26, 1935. C*M CRANE WATER CIRCULATOR FOR BOILERS Filed Nov. 16, 1931 W..........H.,..... A QN 0000000000000 0000@ m 000000.000000, 0,0 0000000000000. 000000000009 N 0 000000000000 m.

Invenan C'lftord 772. Cmwe j 7d/d.,- 6%

Patented Feb. 26, `1935 A l t y t WA'rhRclnonLn'roRkFon Bomans 'Clifford M.,Craneisnvragmiynnm Y AppiicatinNie1pr,16,1193igseri1Nag`575,4441 f A f whims-i C1`*122 ,i409) y t i l My invention relates to improvementsjihgboil- `round the lower portion of ers or likedeviees, K "151' the boilaerl. d l Y .i I j 1 y My inventionrelatesmoreparticularly toboiler 'Ihe'eirculating deviceiwhiehl'choos'e to'employ construotionwhereinwateris heated orthe purwith thistype oi boilermayicomprise aupair of f pose .offproducing steam; and relatesV to Aboilers maineedersz and 28fwhich are situated .within 5 of thestationarytypeaswell'as boilers forrlocothe; boiier' adjacent the lower portion :thereof Vand motives,Y fsteamboatsvandithersteam consuming whiehextend baekto the Yreartnbesheet 18 where vel-liclesif"AJ l iff 'iA f .ngi` they are-attached' to'two arched tubings 30 `and g .The principal object of'my inventionisftofpro- 32 which.v protrudeithroug'h .the itubeisheet and y 10. videian improved :boilerconstructionwherebythe extend:throughtheeonibustionehamber.24 up- 10i eiciency. thereof. wilt 'belgreatly 'increased fand wardlyztothetop ortherfs'amevtube sheet where the.eliminationoffsseale:therein'effected?` they enteramdaresuitablyeonnected tothe-boiler 1 `A further -ohject 4is"'tuprovide improved eirew at'34-and36.'TEafchjof the main ieede'rs 26 and later' meansfora `boiler@whereby increased'v e- 28111213'Y be providedwth: a? plurality 'of Alaterally 1 5Y iieiernw` emi. `lower fuel oorisur'motonv dre ae'com `extending branches irwhiacl'r may extend upward- 15 jAfurtherlobjeetis toprovideanimp-rovedlboler ingtgwater :from varionsaportionsgof the'V boileri i 'structure'of the'eharacter describedthat'iseasily properwzAplurality df-openings 40 vare alsou proandeleaplyfv manufactured, yet,l durable `.under vided inthe mamfeedersz and 28 so thdtwaterv 20 strennou'sworking conditions. sind not easily capa; may enter'these pipesf @tifa-'intimider off different `20 ble of becoming out of order. Y .1 i elevations. asfwelll: msltiom betweenthe` front 1 Afifmther'obectis-Atofprovide. arsimple'andef- -ndithe-feaiiiotfthe;boiler.f 'j l 1 eient means"`for`=ca.usix1g,aiciroulationrof .the we# 'I'he'arched tnbirlgs 30 and'32, aS Glealls" Shown l ter at'the front` andffliower. portions of fthe: boiler; in'thedrwingextend fora; considrable'distahce resulting. infan 'equallandieei'ent `heating:ofthe inilthercombuistion chamber-724 andere directed 25 `other"objeotireinfach/'antangesiwill-be more ap; Vspacesin the oombustion'charnher where' the most parent'firom `the iol'lowing. descriptionlwherein is,E av'a'latble` l fr l reference is had to the aceompanyingipsheetrof Imdeseribingthe-operationof afb'oiler of this drawingslonitrhirnhr:` 1 i Fig..1f'is.\ ai diagrammaticyviiew 1in perspective tratedrthel'hetimits frorrntherebox` are `forced. ilhistrating. anfinstallation of my improvedwei-` to]1V travelrftowamds theeombustion chamber 2.4 ter circulatorasappled to ar horizontal-.ior'stathrougha'afDOr-nf' the xle's' 116 and are then tionary typehoiler; i drawn forward; throughznther fines 16-V into the 1 JFig.; 2' is 'a Vsection throughthelboilerproperon smoke'bo'x nctthenfexpelled. through. the stack. 35

the lines 2-;2 ofV Figfnly 'Ehej-srnoke'hmrlandfstaic'k have not'ilbeen shown Fig. 3 is a similar sectionv onV the' lines 34-31 of but it Slfeliwlithat-` 13h05@ Skilled iff-the all?,

Fig, r l* the: referemeethereto'will be sufficient. i y

f-rmthedmwing; innig. rind-ve shown@typel The heatin' thisA type ofwurnaee impingeeV 40` of' .boit-erlgrwmgh` mayof the usual` hon; againstthelowerfhalt of'theboi'ler shell-` and also 40 zont'al t'ype'lhaving a, grate 12 and a 'reboxlm theflues,the rear `time sheetandtheerched tub` looatedfa'djacentthe front end. ofthe'hoilerk"` The iIlg 3'0 and 32. -J'Askthel heet-that is PPdLlGed by bOel iSL '0f th@ llstmay typeprovided with flues the eombnstiom initherebox'liisfdrawir to the 16 throughwhich theheatedgses areadagpted combustion chamber; itlis transformed into Y 46 to pass from the flrebox to the stack or chimney gases? andrume and' isthen drawn through the 45 mmhierfuma; Y t y, ues into the steek; the*gasesaxetraNelling i r' 'Ihe boiler may have the-usual rear-tube 'sheet through theffluesgntheyare radiating heatlthrough l or other snitable'material whi'ohkwill direct the boilem thereby? vr1Jlainslfnitting heat to thisf water 50 heatfwhicmpassesthrough'the iinesf 16 do'wh- By virtue of this traivelf, theY units! of' heat? become 50 wafrdly so thithe same'may return thr'oughfthe` p lessfaisthedismneeA of trdvel consumes the units lower'iilnes 16. The closuremem-her 20 forms one ot' -lifeati` Frfthislreason we" havevariouswater portion of the rebrick or othersuitable wall`sy22 temperatures ini thebo'iilerfz Thisdiiferen'e in whichcompletely-'enclose the boilerfrom a, posi- Water temperature in the boiler is diie primarily type"in,noonjun`ction withf the^cirenlator illus- 30V tionabove then-ues:downwardl'andform acomtotwo'causeszl.exhaustion oiyheatfunits asthe l Thecirculator which iscalculated to remedy Ythis inlets at different levels therein. v

condition, and which is composed of the two :main feeders 26 and 28,V is adapted to draw cold water from the bottom of the boiler and expel the same through the arched tubings 30 and 32 into the upper portion of the boiler. The feeders and the arched tubes are at all times below the water level of the boiler; hence they are never subjected to combustion chamber heat without-being full of travelling water.

The heat in the combustion chamber, striking against the tubes of the circulator, causes the water to rise or produces an agitation that creates a vacuumV which replaces each particle of water generated into steam'or produced intoVV circulation. As the cooler water seeksits level at the bottom of the boiler, a circulation is produced which tends to render the entire body of water within the boiler of the same temperature.

' Fromthe description thus provided, itis apparent that VI have provided an improved Ameans for circulating the' water ofv unequal temperatures in a boiler and further thatY I have used the heat units which would otherwise be drawn .through the furnace and out through the stack.

For this reasonitisbelieved to be apparent that ainuch` more efcientfboilerV construction has Vbeen provided and onewherein'water will be more easilyand quicklyv heated. than heretofore.

While I have illustrated'and described a specific embodimentand a modification thereof, I do not Wish ,to `be limited to any Vof `the particulars shown; rather what I desireto secure and protect by Letters Patent of the United States is:

1. Apparatus-of the class specified comprisingconduits extending through the lower part of a boiler-and from a kpoint adjacent the lower end of saidboiler through a combustion chamber of a'furnace Yto aV point adjacent therupper `end of the boiler, said conduits having perforated branch conduits disposed at points .along the length` of theboiler. i 'f p V2. Apparatus of the class specified comprising conduits extendingthrough aboiler and leading from oneY point of the'boiler to another and through acombustion chamber of a furnace.. said Y conduits having perforated branch' conduits disposed at points along the lengthv of the, boiler. Y

l 3. Apparatus of the class specified comprising conduits extendingl through the lower `part of a boiler and from said boiler through a combustion chamber of a. furnace to a point adjacent the upper end of the boiler, said conduits having a plurality of inlets therein and perforated branch conduits extending therefrom and open.- ing in the 'water space of the boiler. l Y 4. Apparatusiof the class Vspecified comprising mainconduits extending through the lower part ofa boiler and from the lower end of said boiler through a combustion chamber. of a furnace to a pointadjacentV the upper end ofthe boiler, branch Vconduits extending from the main conduits said main and branch conduits having means formed therein to provide a plurality of 5. Acirculator foraboiler comprisingmeans for conveying waterfrom the lower part of the upper part of the boiler, saidV means extending through the lower part of said boiler and arranged to pass through a heating 4medium adjacent the boiler, and a perforated branch conduit for feeding water from remotepoints-to the water conveying means'. Y Y

6. A circulator fora boiler comprising means for conveying water from the lower part to the upper part of the boiler, said means extending throughV the lower part of said boiler and arranged to pass through a heating medium adjacent theboiler and said means having a plurality of perforations Y ber foroconveying'water from the lower partY to the upper part'ofV the boiler,saidy circulatory pipes extending through aportion of the lower part of said boiler and having projectingbranch inlets at a pluralityV ofseparated points.

@Apparatus of the, class` specified l comprisringv circulatory pipes inthe boilercornbustion chamber for "conveying water from the lower part to the upper p-art ofthe boiler, s'aidl'circulatory pipes extending through a portion of the. lower part of said yboilerV Vand having branchV conduits arranged to provide inlets Y at a plurality o separated pointsand different levels. r Y y 10. The combination Ywith'V a' horizontal iboiler, a rebox at one end `thereof anda combustion chamber of a feeder pipe extending along the inside bottom wall ofV said Vboiler passing through a `vertical wall thereof,then upwardly through said combustion chamber and re-enteringsaid boiler at a rpoint below the water leveltherein, said feeder pipe having a plurality vof branches reaching different elevations and a plurality of ports' at different points. l Y

11. ApparatusY of the class specified comprising a boiler, main'feeder conduits extending along the bottom of the .boiler,: lateral branches diverging to points remote from-the Vmain feederand having openings therein, circulating conduits. lead- Ving from the main feeder conduits to thetop-of the iboiler, and meansforv causing circulation through the. conduits. l Y V 12. Apparatus of the Vclass specified comprising a boiler, main feeder conduits extending along the bottom ofthe boiler, a series-of lateral branches diverging to points remote from the main feeder and having openings therein, circulating conduits leading'from the main feeder conduits to the top of the boiler, and means for causing circulation through the conduits. Y

13. Apparatus of the class specied comprising a boiler, main feeder conduits extending along the bottom-of the boiler, lateral branches diverging from the main feeder and having openings therein, Acirculating conduits leading from' the main feeder conduits to the top of the boiler,V and V means 4for causing circulation through the-conduits.

14. Apparatus of the class speciiied comprising a boiler, main feeder conduits extending along the bottom of the boiler, a series off lateral branches `diverging from Vthe main feeder and having openings therein, :circulating t conduits leading from the main feeder conduits to the top of the boiler, andmeans for causing circulation through the conduits; 7

15. Apparatus ofthe class describedcomprising aA boiler, main feeder conduits extending therein remote from the main feeder conduits,` and means for causing circulation through the conduits. `Y Y v 16. Apparatus of the class described comprising a. boiler, main feeder conduits extending through and from a point Within the `lower end of the boilerto a point adjacent the `upper end of the boiler and provided with perforations,

a branch conduit extending from the main feeder conduits having aY perforation therein remote from the main feeder conduits, and'means for causing circulation through the conduits.

17, A device adapted for use Vin boilers com-` prising: aconduit leadingfrom one pointfof the' boiler to'anothernthrough a combustionchamber .of a furnace and having branch conduits arranged to provide inlets at a plurality of separated poin within the water space of the boiler.

18. device `adapted for use in boilers comprising aconduit leading from one point of .the

boiler to anotherthrough a combustion chamber of afurnace and havingV `branch conduits arranged toprovide inlets at a plurality of sepa rated points and different levels within the water space of the boiler.

19. A device 4adapted for use in boilers comprising a conduit leading from one point of the L boiler to anotherthrough a combustion chamberlof a furnace and having an inlet formed therein and a branch conduit also having an inlet there'- in within the water space of the boiler.

20. Apparatus of the class specied comprising K conduits extending through the lower part of a .boiler and from a'pointadjacent the lower end of said boiler through a heatedy chamber lof a furnaceY to va point adjacentvthe upper kend of the boiler, said conduits having perforated branch conduits disposed at points along the length of 20 the boiler.` Y n v CLIETQRD MCRANE. 

